Home / 744,397.29-1,116,706.64-345,078.45

Finding the Fourth Proportional to 744,397.29, 1,116,706.64 and 345,078.45

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Solution

The fourth proportional to 744,397.29, 1,116,706.64 and 345,078.45 is: 517,668.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,397.29 : 1,116,706.64 = 345,078.45 : x
  2. Step 2: Convert to fraction form
    744,397.29/1,116,706.64 = 345,078.45/x
  3. Step 3: Cross multiply
    744,397.29x = 1,116,706.64 × 345,078.45
  4. Step 4: Simplify right side
    744,397.29x = 385,351,394,710.52
  5. Step 5: Solve for x
    x = 385,351,394,710.52/744,397.29
  6. Step 6: Final answer
    x = 517,668.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.